400k+
Total downloads
5.0
Rating on Apple Store
359
Reviews
ABOUT FGS
Valid, fast and reliable
Pain is often difficult to recognize in cats due to their unique behavior. The Feline Grimace Scale© is a valid, fast, reliable and easy-to-use tool for feline acute pain assessment by both veterinary health professionals and cat owners.

Evidence-Based
Based on robust clinical studies for accurate acute pain assessment in cats

Improved Care
Protecting feline welfare by recognizing that “something is wrong” and treatment may be needed

Standardised Scoring
Consistent 0-2 scoring across five key facial expressions

FEATURES
Robust Science
The FGS© is the most studied acute pain assessment instrument in cats with robust open-access science behind it. You can trust it!
Quick and Easy to use
Reliable for veterinary professionals and cat owners
Real-time acute pain scoring even in the home environment
Rigorous scientific validation
Accurately identifies facial expressions of pain
SUPPORT US
Support our efforts to make the world a better place for cats
The FGS© is independent of any funding or sponsorship. Please consider a donation today. This will help us maintaining this website and the FGS© app while supporting educational initiatives that enhance feline health and welfare worldwide.


CURRENT WORK
AI-powered FGS
The AI-FGS provides over 95% accuracy in pain detection. We are currently working to bring this technology to you and your cat.




